Resin blend for melting process

Abstract

Provided are a resin blend for forming a layer-separated structure, a pellet, a method of preparing the same and a resin article having a certain layer separated structure. The resin blend may include a first resin, and a second resin that comprises a resin to which an organic functional group containing one oxygen atom or more is introduced, and that has a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s −1 and a processing temperature of the resin blend. The resin blend can improve mechanical and surface characteristics of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.

What is claimed is: 
     
         1 . A resin blend for a forming a layer-separated structure, comprising:
 a first resin; and   a second resin that comprises a resin to which an organic functional group containing one oxygen atom or more is introduced, and that has a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s −1  and a processing temperature of the resin blend.   
     
     
         2 . The resin blend according to  claim 1 , wherein the second resin has a difference in melt viscosity from the first resin of 0.1 to 2000 pa*s at a shear rate of 100 to 1000 s −1  and a processing temperature of the resin blend. 
     
     
         3 . The resin blend according to  claim 1 , wherein the second resin has a difference in glass transition temperature from the first resin of 10° C. to 150° C. 
     
     
         4 . The resin blend according to  claim 1 , wherein the second resin has a difference in glass transition temperature from the first resin of 30° C. to 150° C. 
     
     
         5 . The resin blend according to  claim 1 , wherein the organic functional group containing one oxygen atom or more comprises an organic functional group represented by the following Chemical Formula 1:
   —R 1 —Cy 1   [Chemical Formula 1]
   wherein R 1  is a single bond or an alkylene group having 1 to 16 carbon atoms, Cy 1  is oxacycloalkyl group having 2 to 40 carbon atoms.   
     
     
         6 . The resin blend according to  claim 1 , wherein the first resin comprises at least one selected from the group consisting of a styrene-based resin, a polyolefin-based resin, a thermoplastic elastomer, a polyoxyalkylene-based resin, a polyester-based resin, a polyvinyl chloride-based resin, a polycarbonate-based resin, a polyphenylene sulfide-based resin, a vinyl alcohol-based resin, an acrylate-based resin, an engineering plastic and a copolymer thereof. 
     
     
         7 . The resin blend according to  claim 1 , wherein the resin comprised in the second resin comprises at least one selected from the group consisting of a (meth)acrylate-based resin, an epoxy-based resin, an oxetane-based resin, an isocyanate-based resin, a silicon-based resin, a fluorine-based resin and a copolymer thereof. 
     
     
         8 . A pellet, comprising:
 a core including a first resin; and   a shell including a second resin that comprises a resin to which an organic functional group containing one oxygen atom or more is introduced, and that has a difference in melt viscosity from the first resin of 0.1 to 3000 pa*s at a shear rate of 100 to 1000 s −1  and a processing temperature of the pellet.   
     
     
         9 . The pellet according to  claim 1 , wherein the second resin has a difference in glass transition temperature from the first resin of 10° C. to 150° C. 
     
     
         10 . A method of preparing a resin article, comprising:
 melting the resin blend of  claim 1  to form a melt blend; and then   processing the melt blend to form a layer-separated structure.   
     
     
         11 . The method according to  claim 10 , further comprising:
 curing the layer-separated structure.   
     
     
         12 . A method of preparing a resin article, comprising:
 melting the pellet of  claim 8  to form a melt; and   processing the melt to form a layer-separated structure.   
     
     
         13 . A resin article having a layer-separated structure, comprising:
 a first resin layer;   a second resin layer formed on the first resin layer; and   an interface layer including a first resin and a second resin and formed between the first resin layer and the second resin layer,   wherein the second resin layer comprises a resin to which an organic functional group containing one oxygen atom or more is introduced.   
     
     
         14 . The resin article according to  claim 13 , wherein component of the first resin layer is detected on a surface of the second resin layer by infrared spectrometer.